Spain's Liliana Fernandez Steiner and Elsa Baquerizo McMillan celebrate a point against Argentina during their women's preliminary round beach volleyball match at the London 2012 Olympic Games at Horse Guards Parade
Spain's Liliana Fernandez Steiner and Elsa Baquerizo McMillan celebrate a point against Argentina during their women's preliminary round beach volleyball match at the London 2012 Olympic Games at Horse Guards Parade
Maria Sharapova celebrates winning the first set in her women's singles tennis match against Britain's Robson at the All England Lawn Tennis Club during the London 2012 Olympic Games
Canada's Annie Martin misses the match point during their women's preliminary round beach volleyball match against Russia at the London 2012 Olympic Games at Horse Guards Parade
Venus Williams of the U.S. celebrates after defeating Canada's Wozniak in their women's singles tennis match at the All England Lawn Tennis Club during the London 2012 Olympic Games
India's Devendro Singh Laishram walks to the ring for his fight against Honduras' Molina Figueroa in the Men's Light Fly (49kg) Round of 32 boxing match during the London 2012 Olympic Games
Serbia's Djokovic celebrates after winning his men's singles tennis match against Roddick of the U.S. at the All England Lawn Tennis Club during the London 2012 Olympic Games
India's Jwala Gutta and Ashwini Ponnappa play against Singapore during their women's doubles badminton match during the London 2012 Olympic Games at the Wembley Arena
India's Manoj Kumar reacts after he defeated Turkmenistan's Hudayberdiyev in the Men's Light Welter (64kg) Round of 32 boxing match during the London 2012 Olympic Games
India's Jwala Gutta and Ashwini Ponnappa play against Taiwan during their women's doubles group play stage Group B badminton match during the London 2012 Olympic Games at the Wembley Arena
India's Saina Nehwal plays against Belgium's Lianne Tan during their women's singles group play stage Group E badminton match during the London 2012 Olympic Games at the Wembley Arena
Australia's Nat Cook celebrates a point during their women's preliminary round beach volleyball match against Austria at the London 2012 Olympic Games at Horse Guards Parade
Serena Williams of the U.S. returns to Poland's Radwanska in their women's singles tennis match at the All England Lawn Tennis Club during the London 2012 Olympics Games
Switzerland's Roger Federer celebrates after defeating France's Benneteau in their men's singles tennis match at the All England Lawn Tennis Club during the London 2012 Olympics Games